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Cylinder head

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Coppertop1234:
Project 2  (1978 F1) has issues with the head so we are looking for a replacement top end.


I have seen an F2 head on eBay in UK and think it would be a straight exchange?


Any advice please

Cheers

Keith Snr

hairygit:
Project 2 is an F1? An F2 head can be made to fit, but it's a lot of hassle to keep it oiltight due to mods to the lubrication and oilways/return passages in the head, and are notorious for rapid valve/guide failiure, and very expensive to source replacement.  Far better to look for the correct head, also shared with the 750K7. I understand that earlier K heads will also fit, but you'll need to get advice from Bryan or Trigger as to what's involved

Spitfire:
I may be wrong but if I remember correctly the F2 has domed pistons and larger volume hemispheres in the cylinder head so you will be lowering the compression, here's some info from the US site, http://forums.sohc4.net/index.php/topic,99165.msg1105940.html
There is probably more information over there.

Cheers

Dennis

royhall:
Most definitely not the same. The F2 head is unique to the F2, bigger valves being the biggest difference. Don't think it would fit either, dowels are possibly different.

Trigger:
+1 with Roy on the F2 head, will be a nightmare to get it right. Some of the F1's had domed pistons, but even that head is not a straight swap.

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